Box for pouring steel ingots



B. J. MADDEN BOX FOR POURING STEEL INGOTS June 28 1927. 1,633,992

Filed Jan.l4, 1927 2 Sheets-Shoot 1 (El 26- [my FYI/29 Inventor I wzzmaaih B. J. MADDEN BOX FOR POURING STEEL INGOTS Filed Jan.14, 1927 2 Shoots-Sheet 2 June 28 1927. 1,633,992

- forpouring of its objects Patented June 28, 1927.-

UNITED STATES BERNARD J'. MADDEN, OI DULUTH,

MINNESOTA.

' BOX FOB POUIBJJIG STEEL INGOTS.

Application fled January 14, 1927. Serial No. 161,166.

The present invention appertains to boxes steel into molds, and has for one tov provide a structure of this character whereby more molds can be filled at one operation, the flow of steel through the molds being controllable at all times so that more or less of the molten steel can be directed to either of the molds.

Another very important object of the invention resides in the provision of a pouring box whereby the ingots will be poured slowly thus doing awaywith the cracking resulting from rapid pouring of the steel. It is well known to those .killed in the art that unless the ingots are poured slowly, the cracks will be produced and this has resulted to a use to a large extent of a plate known as a. bottom shaft. Such ingots are more expensive to manufacture than top cast ingots. The present invention, however, produces top cast ingots with all the advantagesof the bottom cast ingots but at a much lower cost.

A'still further very important object of the invention is'to provide a whereby by reducing the flow of steel the formation of cracks is practically eliminated, the pressure of the stream as it comes from the ladle being taken up by the pouring box and said stream being split so that a portion will go to one pair of molds and the balance to the other pair of molds, the flow being much slower than should the steel be poured directly from the ladles into the molds.

With the .bove and numerous other ob-. jects in view as will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as.

will be hereinafter morefully described and claimed.

In the drawings: Figure 1 is a side elevation of an assembly vembodying the features. of my invention,

Fig. 2 is a horizontal longitudinal section through the pouring box,

Fig. 3 is a vertical longitudinal section therethrough,

Fig. 4 is an end view of shown in Figure 1. Y

Referring to the drawing in detail, it will be seen that the numerals 5 denote the rails of track on which the wheels 6 of trucks 7 rise. Molds 8 are mounted on the tracks 7 there preferably being two molds on each truck and two trucks coupled together; The numerals 9 and 10 denote the assembly pouring box' .This machine or tiers. A rail 11 is disposed on tiers 9. A table 12 is partially mounted on tiers 10 and supports a rail 13 forming with rail 11 a trackway for wheels 14 journaled on axles-15. My improved pouring box B is mounted on the axles 15. I

The box B includes a bottom 17 having openings 18 one to each side of the center thereof and openings 19 one adjacent each end thereof. lV-alls 20 rise from the side edges of the bottom 17. End walls 21 rise from the end edges of the bottom 17 and are curved inwardly as at 22 to provide horizontal extensions 23. The centers of the side walls 20 are extended upwardly to form with walls 24 a hopper 25 into which the molten steel is poured from ladles. Detachable. housings 26 are engaged between the inner 'ends of extensions 23'and the. walls 24. Brick linings 27 is provided for the interior of the pouring box. Gates 28 are; mounted on rods 29 slidably through openings in'theupper portions of the housings 26 and are con trolled by levers 30 pivotally mounted as at 31. Thus the gate 28 may be raised and lowered so that when desired the ends of the boxing may be cut off so that no molten steel will flow through the openings 19 orthese gates 28 may be lowered to retard the flowing of the steel through be desirable. Stoppers 32 are movable in and out of opening 18 and are mounted on rods 33 slidable through openings in the walls 24 and pivotally engaged with levers 34 which are pivoted as at 35. Hatches 36 are mounted on the levers 34 and are engageable with stops 37 to hold the stoppers 32 in open position when desired.

A brick 39 rests on the brick lining 27 on the bottom 17 and has a baflie roof 40 disposed thereover. This roof includes sides 41 which slant upwardly and inwardly towards each other and ends 42 which slant upwardly and inwardly towards each other, said sides and ends 41 and 42 respectively being provided at their bottoms with openings 43. The brick 39 functions as a hearth and has aluminum 45 thereon so thatthe molten steel poured into the hopper quickened.

From the above detailed description it will be seen that I have devised a new and useful casting machine for pouring steel ingots. box enables the molten steel to be poured into more molds at one time.

In the molten state, steel will be fused and is capable of disthe openings 19 as may solving large volumes of gases such as oxy gen, carbon monoxide, nitrogen and hydrogen. These gases form blow-holes which become filled with liquid oxide of iron and do not weld in the making of seamless pipe and the like. These are known in the art as cracks and it is necessary to chip them at a large expense. My apparatus, however, slows down the pouring of the steel and gives the same time to quicken. The stream is split by the bafile roof 42 and the two streams thus formed may be regulated by a proper operation of the stoppers 32 and the gates 28..

It'is thought that the construction, operation, utility, and advantages of this invention will now be clearly understood by those skilled in this art without a more-detailed advantages.

Having thus described my invention, what I claim as new is 1. A box for pouring steel ingots comprising a bottom having a plurality of openings, means for controlling the flow of molten steel through said openings, said box including an entrance hopper, and a bafile on the bottom below the hopper to split the stream of molten steel, said baflle being in the form of a roof having openings in the bottom edges thereof, and a brick on the bottom under the roof for supporting aquantity of aluminum.

2. A box for pouring steel ingots comprising a bottom having a plurality of openings one to each side of the center and one at each end, gates movable across the box between the end and intermediate openings, means operable from the exterior of the box for moving the gates.

3. A box for pouring steel ingots comprising a bottom having a plurality of openings one to each side of the center and one at each end, gates movable across the box between the end and intermediate openings, means operable from the exterior of the box for moving the gates, stoppers associated with the intermediate openings, and means operable exteriorly of the box for controlling said stoppers.

4. A box for pouring steel ingots comprising a bottom having a plurality of openings one to each side of the center and one at each end, gates movable across the box between the end and intermediate openings, means operable from the exterior of the box for moving the gates, stoppers associated with the intermediate openings, and means operable exteriorly of the box for controlling said stoppers, a hearth brick on the bottom between the intermediate openings for supporting a quantity of aluminum, and a baflie roof over said hearth brick and having its bottom edges provided with openings.

In testimony whereof I aflix my signature.

BERNARD J. MADDEN. 

